Western Canada and Texas-New Mexico | | The three orogenies of the Devonian were: | c. Acadian, Antler, Ellesmere | | Cratonic Sequence 3 (Kaskaskia) can be identified by the presence of the basal: | b. Oriskany Sandstone in New York State | | The most useful criteria to distinguish deposits of Cratonic Sequence 3 (Kaskaskia) from Cratonic Sequence 2 (Tippecanoe) on the craton would include: | a. fossil assemblages | | | b. stratigraphic position | | Devonian reef complexes in western Canada are important because they: | a. are important hydrocarbon reservoirs | | | b. ormed barriers which resulted in potash rich evaporite deposits | | | c. are important paleoclimatic indicators | | Mississippian carbonate sequences are characterized by all but which of the following: | e. trilobites | | Cyclothems represent: | d. transgressive and regressive sequences | | The Ouachita system changed in terms of style of sedimentation from a passive margin to an active margin in the: | d. Early Mississippian | | At the end of the Permian, the suture between Gondwana and Laurasia was marked by a continuous moutain chain in which three mobile belts? | d. Ouachita, Appalachian, Hercynian | |
Chapter 12&13 In which period were amphibians and seedless vascular plants most abundant? | b. Pennsylvanian | | Based on similarity of embryo development, which invertebrate phylum is most closely allied with the chordates? | a. Echinodermata | | The greatest recorded mass extinction on Earth occurred at the end of what period? | d. Permian | | The fossils of the Burgess Shale are significant because they provide a rare glimpse of: | b. the soft-part anatomy of extinct groups | | | c. soft-bodied animals | | What type of invertebrates dominated the Ordovician invertebrate community? d. epifaunal benthonic sessile suspension feeders | | The first organisms to construct reeflike structures were: | b. archaeocyathids | | Which of the following organisms is an example of an epifaunal benthonic suspension feeder? | d. articulate brachiopod | |
The Essay on Ten Most Important People Of The 20th Century as Rated By The Time Magazine
Tauseef Ahmed 09/01/03 "Ten most important people of the 20th century" The world we see today has had a lot of changes and developments, which are contributed by some very important people. In the 20th century there were some people who helped in the development of art, music, medicine, technology, government, and peaceful resolutions. Either in a good or in a bad way these people have greatly ...
The major organic-walled phytoplankton group of the Paleozoic Era was: | a. Acritarchs | | An exoskeleton is advantageous because it: | a. prevents drying out in an intertidal environment | | | b. provides protection against ultraviolet radiation | | | c. provides protection against predators | | | d. rovides attachment sites for development of strong muscles | | | | | Which plant group first successfully invaded land? | a. seedless vascular | | Ostracoderms are | a. jawless fish | | Labyrinthodonts are: | c. amphibians | | Which of the following fish groups was the first to evolve jaws? | c. acanthodians | | Amphibians evolved from which of the following groups? | e. lobe-finned fish | | Which algal group was the probable ancestor of vascular plants? | a. green | | The most significant evolutionary change that allowed reptiles to colonize all of the land was the evolution of: | d. n egg that contained a food-and-waste sac and surrounded the embryo in a fluid-filled sac | | Based on similarity of embryo development, which invertebrate phylum is most closely allied with the chordates? | d. Echinodermata | |
The first plant group that did not require a wet area for part of its life cycle was the: | e. gymnosperms | | Which of the following must an organism possess during at least part of its life cycle, to be classified as a chordate? | e. notochord, dorsal hollow nerve cord, gill slits | | Which reptile group gave rise to the mammals? | e. herapsids | | Which of the following three groups of invertebrates comprised the majority of Cambrian skeletonized life? | e. trilobites, archaeocyathids, brachiopods | | The age of the Burgess Shale is: | b. Cambrian | | Which group of invertebrates are excellent guide fossils for the Pennsylvanian and Permian periods? | c. fusulinids | | Mass extinctions occurred at the end of which three periods? | a. Cambrian, Ordovician, Permian | | | c. Ordovician, Devonian, Permian | | Pelagic organisms are divided into which two main groups? | c. plankton, nekton | | Chapter 14
The Term Paper on The Cordilleran Orogeny part 1
The Cordilleran Orogeny The earths lithosphere can be divided into two major structural features: ocean basins and continents. Ocean basins, as we discussed in another essay, are formed at spreading ridges and consumed at subduction zones. The continents are a different story. How did the continents originate, and how have they changed over time? The origin of the earliest continental crust is ...
What is the evidence for the breakup of Pangaea? | a. rift valleys | | | b. dikes | | | c. great quantities of poorly sorted nonmarine detrital sandstones | | | d. sills | | | The first Mesozoic orogeny in the Cordilleran region was the: | | b. Nevadan | | | d. Sonoma | | The Mesozoic tectonic history of the North American Cordilleran region is very complex and involves: | a. oceanic-continent convergence | | | b. terrane accretion | | The formation or complex responsible for the spectacular scenery of the Painted Desert and Petrified Forest is the: | c. Chinle | |
The Sierra Nevada, Southern California, Idaho, and Coast Range batholiths formed as a result of which orogeny? | d. Nevadan | | The first major seaway to flood North America was the: | d. Sundance | | The orogeny responsible for the present-day Rocky Mountains is the: | c. Laramide | | The Jurassic formation or complex famous for dinosaur fossils that Marietta College’s dinosaur program is famous for digging in each summer and will be going to visit in Utah during May to collect more dinosaurs from is the: | a. Morrison | | The breakup of Pangaea began with initial Triassic rifting between which two continental landmasses? d. Laurasia and Gondwana | | The time of greatest post-Paleozoic inundation of the craton (by transgressive seas) occurred during which global period? | a. Cretaceous | | A possible cause for the eastward migration of igneous activity in the Cordilleran region during the Cretaceous was a change from: | b. high angle to low angle subduction | | The mountain building event that began in the Jurassic and continued into the Cenozoic (and is also named after the whole mobile belt on the western portions of North America) is called the: | a.
Cordilleran Orogeny | | The three phases of the Cordilleran orogeny in order from oldest to youngest are: | d. Nevadan, Sevier, Laramide | | All but which of the following evolved during the Mesozoic? | b. reptiles | | During the Jurassic, the newly forming Gulf of Mexico was the site of primarily what type of deposition? | a. evaporites | | Which formation or group filled the Late Triassic fault-block basins of the east coast of North America with red nonmarine sandstones? | e. Newark | |
The Term Paper on South America 2
Maps show the east coast of South America and the west coast of Africa providing the evidence that the continents may have being joined together, then broken apart and moved to their present locations. In the earth, a fault is a line of fracture in the rocks where the two sides move by each other. The movement can be up, down or sideways, and it is caused by pressure and tension in the rock. When ...
